ClinicalTrials.gg
CompletedNCT03284788Updated Oct 5, 2023Results posted

Wellness Achieved Through Changing Habits (The WATCH Study)

An interventional study of ABT Weight Loss Intervention in Weight Loss, Obesity and Overweight, sponsored by University of Florida. Completed at 1 site in United States. Open to female participants aged 14 Years to 19 Years. Per ClinicalTrials.gov, last updated 2023-10-05.

Sponsored by University of Florida · Not applicable, Interventional, and Treatment

Phase
Not applicable
Study type
Interventional
Enrollment
17
Allocation
Not applicable
Ages
14 Years to 19 Years
Sex
Female
01

Study summary

The purpose of this pilot, feasibility study is to investigate the acceptability of an acceptance-based therapy healthy lifestyle intervention in adolescent girls with overweight/obesity.

Read the detailed description

Participants will attend 2 baseline clinic visits and adolescents will participate in an ABT healthy lifestyle intervention.

The intervention will include 15 sessions over 6 months.

A post-treatment visit will occur.

02

Conditions studied

  • Weight Loss
  • Obesity
  • Overweight

Keywords

  • acceptance-based therapy
  • adolescents
  • weight
  • weight loss
  • obesity
  • overweight
03

In context

Weight Loss

1,818 studies on the registry are indexed under Weight Loss; 286 are open to participants now.

This study's enrollment of 17 is below the median of 73 across 1,540 interventional studies indexed under Weight Loss.

Browse Weight Loss studies →

Lead sponsor

University of Florida is the lead sponsor of 1,285 studies on the registry; 199 are open to participants now.

Of its 177 completed or terminated interventional studies of FDA-regulated products, 141 (80%) have results posted.

Counted across the registry records on this site, refreshed daily.

04

Who can participate

Ages eligible
14 Years to 19 Years
Sexes eligible
Female
Accepts healthy volunteers
No

Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.

Inclusion criteria

  • Adolescent girls between ages 14-19 with overweight or obesity above the 85th percentile for sex and age as determined by CDC growth charts

Exclusion criteria

Exclusion Criteria:

  • Known pregnancy or plans to become pregnant in the next 2 years
  • Any condition prohibiting physical activity
  • A diagnosis of cardiovascular disease or diabetes
  • Have active cancer or cancer requiring treatment in the past 2 years
  • Have active or chronic infections (e.g., HIV or TB)
  • Have active kidney disease or lung disease
  • An eating disorder or substance abuse disorder
  • Having begun a course of or changed the dosage of any medications known to affect appetite or body composition within the previous 3 months
  • Weight loss greater than or equal to 5% in the previous 6 months
  • If they do not follow the study plan
05

Study design

Phase
Not applicable
Primary purpose
Treatment
Allocation
Not applicable
Intervention model
Single group
Masking
None (open label)
Enrollment
17 participants (actual)

Study arms

  • Experimental
    ABT Weight Loss Intervention

    Adolescent girls will attend healthy lifestyle sessions that include nutritional education and physical activity education and build skills in the areas of values clarification, mindfulness, self-regulation skills, acceptance of uncomfortable states, goal-setting, problem solving, and self-monitoring.

    Behavioral: ABT Weight Loss Intervention

Interventions

  • BehavioralABT Weight Loss Intervention

    This includes 15 sessions that are each 90 minutes in length. Intervention sessions will be weekly for the first 2 months, bi-weekly for the next 2 months, and monthly for the last 2 months.

06

What researchers measure

Primary outcomes

  1. Number of Participants Recruited

    Number of teens who enrolled and completed both initial baseline visits. The recruitment strategy will be deemed 'feasible' if 15 participants are recruited within the 8 weeks.

    Time frame: Baseline; Week 8

  2. Percentage of Participants Who Did Not Complete the Intervention.

    The attrition strategy will be deemed "feasible" if there is less than 50% attrition at the end of the 6-month intervention. This percentage details attrition, or the percentage of participants who did not complete the intervention.

    Time frame: Baseline; Month 6

  3. Percentage of Participants Who Decide to Participate in the Intervention

    Of the participants who completed baseline visits, this percentage details what percentage of enrollees decided to participate in the intervention. The study will be deemed "acceptable" if at least 80% of enrolled participants decide to participate in the intervention.

    Time frame: Baseline; Week 1

  4. Percentage of Participants Who Attend All Intervention Sessions.

    This percentage details the percentage of those who attended all 15 intervention sessions among intervention completers (n=11). The study will be deemed 'acceptable' if at least 70% of intervention completers attend all sessions.

    Time frame: Week 1; Week 24

Secondary outcomes

  1. Change in BMI Z-score

    Body mass index (BMI) z-scores are measures of weight adjusted for the height, age, and sex of the child. BMI z-scores correspond with growth chart percentiles. These scores are calculated with an external reference rather than internal references. In this study, the Centers for Disease Control and Prevention SAS program was used to calculate scores based on 2000 CDC growth charts. Additionally, a clinically significant change in BMI z-score was defined as greater than or equal to -0.15 as this decrease has shown improvements in one or more cardiovascular disease risk factor. The central z-score value is 0, representing the population mean, and standard deviations below the mean indicate better outcomes.

    Time frame: Baseline; Month 6

07

Results

Posted Oct 5, 2023

Participant flow

Participants were recruited in clinics or through social media.

Participant flow — Overall Study
MilestoneABT Intervention
Started13
Completed11
Not completed2
Withdrew: Withdrawal by subject2

Outcome measures

PrimaryNumber of Participants Recruited

Number of teens who enrolled and completed both initial baseline visits. The recruitment strategy will be deemed 'feasible' if 15 participants are recruited within the 8 weeks.

Time frame:
Baseline; Week 8
Reported as:
Count of participants · Participants
Number of Participants Recruited
ParticipantsABT Weight Loss Intervention
Number of Participants Recruited16
PrimaryPercentage of Participants Who Did Not Complete the Intervention.

The attrition strategy will be deemed "feasible" if there is less than 50% attrition at the end of the 6-month intervention. This percentage details attrition, or the percentage of participants who did not complete the intervention.

Time frame:
Baseline; Month 6
Reported as:
Number · percentage of participants
Percentage of Participants Who Did Not Complete the Intervention.
percentage of participantsABT Weight Loss Intervention
Percentage of Participants Who Did Not Complete the Intervention.15.4
PrimaryPercentage of Participants Who Decide to Participate in the Intervention

Of the participants who completed baseline visits, this percentage details what percentage of enrollees decided to participate in the intervention. The study will be deemed "acceptable" if at least 80% of enrolled participants decide to participate in the intervention.

Time frame:
Baseline; Week 1
Reported as:
Number · percentage of participants
Percentage of Participants Who Decide to Participate in the Intervention
percentage of participantsABT Weight Loss Intervention
Percentage of Participants Who Decide to Participate in the Intervention81.3
PrimaryPercentage of Participants Who Attend All Intervention Sessions.

This percentage details the percentage of those who attended all 15 intervention sessions among intervention completers (n=11). The study will be deemed 'acceptable' if at least 70% of intervention completers attend all sessions.

Time frame:
Week 1; Week 24
Reported as:
Number · percentage of participants
Percentage of Participants Who Attend All Intervention Sessions.
percentage of participantsABT Weight Loss Intervention
Percentage of Participants Who Attend All Intervention Sessions.90.9
SecondaryChange in BMI Z-score

Body mass index (BMI) z-scores are measures of weight adjusted for the height, age, and sex of the child. BMI z-scores correspond with growth chart percentiles. These scores are calculated with an external reference rather than internal references. In this study, the Centers for Disease Control and Prevention SAS program was used to calculate scores based on 2000 CDC growth charts. Additionally, a clinically significant change in BMI z-score was defined as greater than or equal to -0.15 as this decrease has shown improvements in one or more cardiovascular disease risk factor. The central z-score value is 0, representing the population mean, and standard deviations below the mean indicate better outcomes.

Time frame:
Baseline; Month 6
Reported as:
Mean · z-scores
Change in BMI Z-score
z-scoresABT Weight Loss Intervention
Change in BMI Z-score-0.15 ± 0.34

Adverse events

Collected over Adverse event data were collected over the course of baseline through study completion [6 months].. Non-serious events are listed at a 0% frequency threshold.

Adverse event summary by group
GroupDeathsSeriousOther
ABT Weight Loss Intervention0/13 (0%)0/13 (0%)0/13 (0%)

Baseline characteristics

Age, Continuous
Age, Continuous(years)ABT Intervention
Mean16.69 ± 1.65
Sex: Female, Male
Sex: Female, Male(Participants)ABT Intervention
Female13
Male0
Race/Ethnicity, Customized
Race/Ethnicity, Customized(Participants)ABT Intervention
Hispanic/Latina2
Not Hispanic/Latina11
White7
Black5
Multiple Races1
Highest parental education
Highest parental education(Participants)ABT Intervention
High school diploma/GED2
Some college/associate degree3
College graduate3
Graduate or professional degree4
Unknown1
Body Mass Index (BMI)
Body Mass Index (BMI)(kg/m^2)ABT Intervention
Mean35.28 ± 5.50
08

Study locations

1 site
  • HealthStreet and University of Florida
    Gainesville, Florida 32608, United States
09

References and documents

Study documents

  • Protocol and statistical analysis plan · May 13, 2021
  • Informed consent form · Feb 13, 2019

Documents are hosted by the registry — open the source record to download them.

Individual participant data

Plan to share: No

10

Timeline

Tracking since Sep 25, 2026
ElapsedEstimatedEstimated, not yet reachedSimilar studies: half by the dot; the band is the middle halfHalf of similar studies reached it by the dot; the band is the middle half, from a quarter to three quarters

Ran from Aug 2018 to primary completion in Jul 2020, 23 months.

Results were first posted in Oct 2023, 3 years 2 months after primary completion.

Of 681 non-industry interventional studies with no phase under Weight Loss, half reached primary completion within 22 months of starting (the median), counting those still running; a quarter within 11 and three quarters within 43. This study's 23 months is close to that.

Counting every sponsor, half of 736 studies reached it within 22 months; a quarter within 9 and three quarters within 41.

How these figures are worked out, and which studies are left out of them.

Registered
Aug 29, 2017
First posted
Sep 15, 2017
StartActual
Aug 8, 2018
Primary completionActual
Jul 30, 2020
CompletionActual
Oct 1, 2020
Results first posted
Oct 5, 2023
Last update
Oct 5, 2023
What these dates mean
Start.
When the first participant enrolled; while estimated, when the study expects to open to recruitment.
Primary completion.
When the last participant was examined or treated to collect data for the study's main question, its primary outcome. A study that stopped early gives the date its data collection stopped.
Completion.
When the last participant's last visit took place, for every outcome, secondary ones and side effects included: the end of the study. Often later than primary completion, sometimes the same day.
Actual and Est.
Actual means the registry says the date has happened. Est. (estimated) is a date the sponsor plans or expects. It can still move, and the sponsor is expected to change it to actual once it has passed.
No changes since tracking began. The registry record was last updated on Oct 5, 2023, before this site started recording changes on Sep 25, 2026. Its history is on ClinicalTrials.gov ↗
11

Registry details

Key details

Study ID
NCT03284788
Collaborators
StayWell, National Heart, Lung, and Blood Institute (NHLBI), WellCare Health Plans, Inc.
Responsible party
Sponsor
First posted
Sep 15, 2017
Start date
Aug 8, 2018
Primary completion
Jul 30, 2020
Completion
Oct 1, 2020
Results posted
Oct 5, 2023
Last update
Oct 5, 2023

Study contacts

Michelle I Cardel, PhD, MS, RD
principal investigator · University of Florida

Oversight

Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No
View the source record on ClinicalTrials.gov ↗

Not currently enrolling

This study is completed, as verified in Sep 2023. You cannot join it, but the record below documents what was studied.

Follow this study

Get an email when the registry record changes — status, dates, results — or when someone posts here.

Sign in to follow

Discussion

Questions and observations about this study, from anyone following it. Not medical advice, and not a channel to the study team — their contact details are on the registry record.

Sign in to join the discussion. Reading takes no account; posting does. You choose a display name, and a pseudonym is the default.

Nothing here yet. If you are running this trial, taking part in it, or weighing whether to, this is the place to say so.

Start the discussion